Victron Energy Cyrix-ct 12/24-Volt 120 amp Battery Combiner Kit XV65&CYR01

This Battery Combiner Kit is for adding a 2nd or 3rd battery system in your car, boat, RV or any other vehicle
It utilizes the simplest and most advanced technology to keep all your batteries charged using the engines electrical system, but isolates the starting battery when charging ceases so you never get stranded
Victron Energy Cyrix-ct 12/24-120 is a bidirectional voltage sensitive relay, It will therefore also engage if for example the accessory battery is being charged by a battery charger
Intelligent battery monitoring prevents cycling: The software of the Victron Energy Cyrix does more than simply connect and disconnect based on battery voltage and with a fixed time delay. Victron Energy Cyrix looks at the general trend (voltage increasing or decreasing) and reverses a previous action only if the trend has reversed during a certain period of time, The time delay depends on the voltage deviation from the trend
Easy to install: There is no need to cut into any factory wiring that may void the manufacturer's warranty of your boat or vehicle